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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #if V8_TARGET_ARCH_MIPS64 | 7 #if V8_TARGET_ARCH_MIPS64 |
8 | 8 |
9 // Note on Mips implementation: | 9 // Note on Mips implementation: |
10 // | 10 // |
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1109 // Convert the object to a JS object. | 1109 // Convert the object to a JS object. |
1110 Label convert, done_convert; | 1110 Label convert, done_convert; |
1111 __ JumpIfSmi(a0, &convert); | 1111 __ JumpIfSmi(a0, &convert); |
1112 __ GetObjectType(a0, a1, a1); | 1112 __ GetObjectType(a0, a1, a1); |
1113 __ Branch(&done_convert, ge, a1, Operand(FIRST_SPEC_OBJECT_TYPE)); | 1113 __ Branch(&done_convert, ge, a1, Operand(FIRST_SPEC_OBJECT_TYPE)); |
1114 __ bind(&convert); | 1114 __ bind(&convert); |
1115 __ push(a0); | 1115 __ push(a0); |
1116 __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_FUNCTION); | 1116 __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_FUNCTION); |
1117 __ mov(a0, v0); | 1117 __ mov(a0, v0); |
1118 __ bind(&done_convert); | 1118 __ bind(&done_convert); |
| 1119 PrepareForBailoutForId(stmt->ToObjectId(), TOS_REG); |
1119 __ push(a0); | 1120 __ push(a0); |
1120 | 1121 |
1121 // Check for proxies. | 1122 // Check for proxies. |
1122 Label call_runtime; | 1123 Label call_runtime; |
1123 STATIC_ASSERT(FIRST_JS_PROXY_TYPE == FIRST_SPEC_OBJECT_TYPE); | 1124 STATIC_ASSERT(FIRST_JS_PROXY_TYPE == FIRST_SPEC_OBJECT_TYPE); |
1124 __ GetObjectType(a0, a1, a1); | 1125 __ GetObjectType(a0, a1, a1); |
1125 __ Branch(&call_runtime, le, a1, Operand(LAST_JS_PROXY_TYPE)); | 1126 __ Branch(&call_runtime, le, a1, Operand(LAST_JS_PROXY_TYPE)); |
1126 | 1127 |
1127 // Check cache validity in generated code. This is a fast case for | 1128 // Check cache validity in generated code. This is a fast case for |
1128 // the JSObject::IsSimpleEnum cache validity checks. If we cannot | 1129 // the JSObject::IsSimpleEnum cache validity checks. If we cannot |
1129 // guarantee cache validity, call the runtime system to check cache | 1130 // guarantee cache validity, call the runtime system to check cache |
1130 // validity or get the property names in a fixed array. | 1131 // validity or get the property names in a fixed array. |
1131 __ CheckEnumCache(null_value, &call_runtime); | 1132 __ CheckEnumCache(null_value, &call_runtime); |
1132 | 1133 |
1133 // The enum cache is valid. Load the map of the object being | 1134 // The enum cache is valid. Load the map of the object being |
1134 // iterated over and use the cache for the iteration. | 1135 // iterated over and use the cache for the iteration. |
1135 Label use_cache; | 1136 Label use_cache; |
1136 __ ld(v0, FieldMemOperand(a0, HeapObject::kMapOffset)); | 1137 __ ld(v0, FieldMemOperand(a0, HeapObject::kMapOffset)); |
1137 __ Branch(&use_cache); | 1138 __ Branch(&use_cache); |
1138 | 1139 |
1139 // Get the set of properties to enumerate. | 1140 // Get the set of properties to enumerate. |
1140 __ bind(&call_runtime); | 1141 __ bind(&call_runtime); |
1141 __ push(a0); // Duplicate the enumerable object on the stack. | 1142 __ push(a0); // Duplicate the enumerable object on the stack. |
1142 __ CallRuntime(Runtime::kGetPropertyNamesFast, 1); | 1143 __ CallRuntime(Runtime::kGetPropertyNamesFast, 1); |
| 1144 PrepareForBailoutForId(stmt->EnumId(), TOS_REG); |
1143 | 1145 |
1144 // If we got a map from the runtime call, we can do a fast | 1146 // If we got a map from the runtime call, we can do a fast |
1145 // modification check. Otherwise, we got a fixed array, and we have | 1147 // modification check. Otherwise, we got a fixed array, and we have |
1146 // to do a slow check. | 1148 // to do a slow check. |
1147 Label fixed_array; | 1149 Label fixed_array; |
1148 __ ld(a2, FieldMemOperand(v0, HeapObject::kMapOffset)); | 1150 __ ld(a2, FieldMemOperand(v0, HeapObject::kMapOffset)); |
1149 __ LoadRoot(at, Heap::kMetaMapRootIndex); | 1151 __ LoadRoot(at, Heap::kMetaMapRootIndex); |
1150 __ Branch(&fixed_array, ne, a2, Operand(at)); | 1152 __ Branch(&fixed_array, ne, a2, Operand(at)); |
1151 | 1153 |
1152 // We got a map in register v0. Get the enumeration cache from it. | 1154 // We got a map in register v0. Get the enumeration cache from it. |
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1673 int properties_count = constant_properties->length() / 2; | 1675 int properties_count = constant_properties->length() / 2; |
1674 if (expr->may_store_doubles() || expr->depth() > 1 || | 1676 if (expr->may_store_doubles() || expr->depth() > 1 || |
1675 masm()->serializer_enabled() || flags != ObjectLiteral::kFastElements || | 1677 masm()->serializer_enabled() || flags != ObjectLiteral::kFastElements || |
1676 properties_count > FastCloneShallowObjectStub::kMaximumClonedProperties) { | 1678 properties_count > FastCloneShallowObjectStub::kMaximumClonedProperties) { |
1677 __ Push(a3, a2, a1, a0); | 1679 __ Push(a3, a2, a1, a0); |
1678 __ CallRuntime(Runtime::kCreateObjectLiteral, 4); | 1680 __ CallRuntime(Runtime::kCreateObjectLiteral, 4); |
1679 } else { | 1681 } else { |
1680 FastCloneShallowObjectStub stub(isolate(), properties_count); | 1682 FastCloneShallowObjectStub stub(isolate(), properties_count); |
1681 __ CallStub(&stub); | 1683 __ CallStub(&stub); |
1682 } | 1684 } |
| 1685 PrepareForBailoutForId(expr->CreateLiteralId(), TOS_REG); |
1683 | 1686 |
1684 // If result_saved is true the result is on top of the stack. If | 1687 // If result_saved is true the result is on top of the stack. If |
1685 // result_saved is false the result is in v0. | 1688 // result_saved is false the result is in v0. |
1686 bool result_saved = false; | 1689 bool result_saved = false; |
1687 | 1690 |
1688 // Mark all computed expressions that are bound to a key that | 1691 // Mark all computed expressions that are bound to a key that |
1689 // is shadowed by a later occurrence of the same key. For the | 1692 // is shadowed by a later occurrence of the same key. For the |
1690 // marked expressions, no store code is emitted. | 1693 // marked expressions, no store code is emitted. |
1691 expr->CalculateEmitStore(zone()); | 1694 expr->CalculateEmitStore(zone()); |
1692 | 1695 |
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5207 Assembler::target_address_at(pc_immediate_load_address)) == | 5210 Assembler::target_address_at(pc_immediate_load_address)) == |
5208 reinterpret_cast<uint64_t>( | 5211 reinterpret_cast<uint64_t>( |
5209 isolate->builtins()->OsrAfterStackCheck()->entry())); | 5212 isolate->builtins()->OsrAfterStackCheck()->entry())); |
5210 return OSR_AFTER_STACK_CHECK; | 5213 return OSR_AFTER_STACK_CHECK; |
5211 } | 5214 } |
5212 | 5215 |
5213 | 5216 |
5214 } } // namespace v8::internal | 5217 } } // namespace v8::internal |
5215 | 5218 |
5216 #endif // V8_TARGET_ARCH_MIPS64 | 5219 #endif // V8_TARGET_ARCH_MIPS64 |
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